Dual Mode Wireless Key Fob for Vehicle Control Consolidation
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Solution Overview
Problem
Modern vehicles face complexity in control functions, leading to safety issues and driver discomfort due to numerous controls between the steering wheel, steering column, and center stack, which can be cumbersome and difficult to use, especially when passenger controls are not integrated effectively with the driver's interface.
Innovation Solution
A dual mode wireless device with a reconfigurable display and multifunctional switch serves as a key fob outside the vehicle and a remote controller inside, integrating all vehicle functions through an integrated human-machine interface (HMI) system, eliminating the need for passenger controls and reducing redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control functions are included between the steering wheel, steering column, and center stack, then vehicle functionality is comprehensive, but device complexity and ease of operation deteriorate due to clutter and difficulty in use
Solution Approach 1:
The key fob is transformed into a multi-functional device that combines traditional remote entry functions with in-vehicle control capabilities. When placed in the ignition, it activates vehicle functions through wireless communication, eliminating the need for separate control panels and switches in the center stack and steering column areas.
Solution Approach 2:
Control functions are extracted from the physical control panels and switches located between the steering wheel and center stack, and are instead implemented through the wireless key fob system. This removes clutter from the dashboard while maintaining comprehensive vehicle control capabilities.
2Adaptability or versatility
If multiple control functions are included between the steering wheel, steering column, and center stack, then vehicle functionality is comprehensive, but ease of operation deteriorates due to cumbersome controls
Solution Approach 1:
Physical mechanical controls (switches, buttons, and dials in the center stack and steering column) are replaced with a wireless electronic system. The key fob uses wireless communication protocols to send control signals to the vehicle, eliminating the need for physical contact with multiple control elements.
Solution Approach 2:
The key fob serves as a universal remote control for multiple vehicle functions including door locking, window control, climate settings, and audio system control, all accessible through a single device rather than multiple separate controls.
3Ease of operation
If passenger controls are not integrated effectively with the driver's interface, then driver control is simplified, but adaptability deteriorates as passenger needs are not met
Solution Approach 1:
The key fob system provides a universal interface that serves both driver and passenger needs. Passengers can use their own key fobs to control vehicle functions independently, while the driver maintains full control through the primary key fob, eliminating the need for separate passenger control panels.
Data Source
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AI summary
A communications system (200) utilizing a portable communications device for controlling functions in a vehicle includes a first display (207) for controlling vehicle operating functions and a first transceiver (206) connected to the first display device (207). A multifunctional control switch (205) is connected to the first display device (207), while a second transceiver (226) is used for communicating with either the first transceiver (206) or a remote keyless entry (RKE) receiver (229) depending upon whether the second transceiver (226) is located inside or outside the vehicle. The second transceiver (226) operates to configure operational parameters of the display device (207) when those controls have not been readily integrated into the vehicle center stack.